Title: Experimental and finite element analyses for residual stress prediction of welded SAE-1018 steel joints

Authors: Mukhul Venkatesh Babu; Ajith Ramesh; Saravanamurugan Sundaram

Addresses: Department of Mechanical Engineering, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India ' Department of Mechanical Engineering, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India ' Department of Mechanical Engineering, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India

Abstract: Welded joints are a critical part of any structural component, and the stresses induced can cause a major problem in structural integrity. The presented work discusses the development of a numerical model using finite element techniques to determine the residual stress of an SAE-1018 welded joint. A 3D thermo-mechanical coupled model for shielded metal arc welding is developed to predict the tensile and compressive residual stresses. Further, a uniaxial tension test is also modelled to predict the weld joint strength, and the numerical results are validated with the experiments. ASTM E8 standards are used to perform the tensile test.

Keywords: shielded metal arc welding; SMAW; weld joint; FEM; damage; residual stress; failure strength; SAE-1018 steel; ASTM E8.

DOI: 10.1504/IJMPT.2021.118353

International Journal of Materials and Product Technology, 2021 Vol.63 No.4, pp.247 - 261

Received: 12 Sep 2020
Accepted: 17 Mar 2021
Published online: 22 Oct 2021 *

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